The teenager was given a $1652 on-the-spot fine for breaching the stage three restrictions, but the pair earlier announced they plan to challenge it in court.

The officer told them they had been "smashing it on the roads today".

On Monday, Deputy Commissioner Shane Patton said there was a possibility the fine would be reversed.

"It's quite possible it will be withdrawn because the public is now aware they can't be doing that activity, unless of course it's mixed in with driving to the shops where you are exempt to go and buy food, those sort of things," he said.

Mr Patton said a decision on whether to withdraw the fine would include an assessment of all circumstances.

In the 24 hours to Wednesday, Victoria Police issued 114 fines for breaches of the state's level three lockdown restrictions.